LSP LowSpeedHighPressurePumps E00522

7/22/2019 LSP LowSpeedHighPressurePumps E00522

1/7

LSP Low Speed

High Pressure Pumps


2/7

Pumps specially made for digester service

Sulzer Pumps is strongly involved in

the pulp and paper industry. We have

designed, built and run digesters

ourselves and today we supply com-

plete systems and equipment for this

industry.

Sulzer Pumps has been manufactur-

ing pumps for over 100 years. Sulzer

pumps are running in most of the con-

tinuous digesters all around the world.

This is why we know the hard conditions

and the tough requirements related to

pump applications in pulp cooking.

Chips In

ChipBin

Trim LiquorHeater

EPP

Flash Tanks

Heater

Level TankHigh PressureFeeder

Top Circ.

EPP

SandSeparator

Chip Chute Circ.

APP

White Liquor

LSP

LSP

Make-up Liquor

Gold Blow

EPPModified

CookingCirc.

Digester

EPP

QuenchCirc.

EPP

WashCirc.

Pulp Out

WashHeater

APP

Flash Liquor

FlashTank

Low PressureFeeder

Trim Circ.

Manufacturing qualitySulzer Pumps has manufacturing and

packaging facilities in 14 countries all

over the world and representation in

over 150 countries. We also have 50

customer support service centers to

serve our customers.

Manufacturing quality starts with the

design and manufacture of patterns by

CAD-CAM systems and with precise

castings from our own foundries. Fur-

thermore, Flexible Manufacturing Sys-

tems assure consistently high quality of

our products.

An effective quality control procedure

includes pressure testing of the casing

and a pump test run in the factory test

loop. All important performance data,

such as flow, head and efficiency are

checked. Customers are welcome to

witness these tests at our factories.


3/7

Complete line of pumpsfor the pulp and paper industry

Sulzer Pumps can supply almost all

types of pumps needed in digester

service; stock and process pumps, liq-

uor pumps and high pressure pumps.

These pumps together with other pump

lines, like wear resistant non-clog slurry

pumps and low-pulse fan pumps for

demanding paper machine headbox

service, offer you the most complete

pump program available. Good parts

interchangeability within the different

pump groups will guarantee a reliable

and low cost spare parts inventory. LSP

pumps are also well suited for replacing

high speed pumps in digester service.

LSP Low Speed

High Pressure Pump

for continuous digester feed has a

two-stage, end suction, horizontally

mounted back pull-out design.

Capabilities

to 220 m head

to 300 l/s capacity

to 180 C temperature

AHLSTAR EPP

Digester Pump

where the system pressure is high and

pressure/temperature shocks occur.

Capabilities

to 140 m head

to 1700 l/s capacity


AHLSTAR APP

Process Pumps

for all normal pumping applications in

digester service.

Capabilities

to 160 m head

to 2000 l/s capacity


Sulzer Pumps has manufacturing plants

in several countries and a worldwide

sales and service network. Pumps and

spare parts are stocked at various loca-

tions for quick and reliable deliveries.


4/7

Design Features and Benefits

Hard-coated wear rings and sleeves

protect the casing and impeller against

wear for long operational life while

maintaining high efficiency. Press fitted

to the casing.

The self-venting, top centerline cas-

ing prevents air-lock in the top of the

casing. The casing also has a 3 mm

corrosion allowance for longer opera-

tional life.

The LSP pumps low speed operation gives

it a considerably longer operational life than

that of a corresponding high-speed pump.

This means increased reliability with less

breakdowns and reduced maintenance

costs.

Simplified heavy duty bearing unit design,

no adjustments needed. Oil or grease lu-

brication. Uses the same bearing units as

AHLSTAR pump s APP, EPP, NPP, WPP,

ARP and ASP (except the shaft) reducing

spare parts inventory.

Non-contacting bearing pro-

tection with the combined

advantages of labyrinth ring,

deflector and lipseal for long

bearing life. Lipseal protectsin standstill position.

Heavy-duty shaft. De-

flection at the stuffing boxless than 0.05 mm giving

long mechanical seal

life. High strength duplex

stainless steel is standard

shaft material.

Strong and rigid bearing

support foot improves

mounting stability.

Jackscrews for simple

and easy disassembly.ROTOKEY* impeller mounting provides

a self-locking, reverse run safe, strong

and reliable power transmission. It is

not sensitive to axial loads created

during pump operation.

*US Patent 4,863,353

Closed impellers provide

high efficiency and low

NPSHr values. Axial forces

are balanced with wear

rings and balancing holes

resulting in longer bearing

life.

Seal Fittings

Mechanical seals and packings fit the

same casing cover reducing spare

parts inventory and giving maximum

interchangeability.

Ready-fitted mechanical seals designed

to be a part of the pump assuring more

reliable operation with reduced wear.

Prepressed packings and split stuffing

box gland provide easier service and

quicker change of packings.

Back Pull-Out Design

The pump can be opened for inspection

without disturbing the piping when the

rotor assembly is removed as a unit.

Maintenance is quick and easy, signifi-

cantly reducing maintenance downtime

and costs.


5/7

Performance Data

Technical data

Capacity 300 l/s

Head 220 m

Pressure max 2.5 MPa

(25 bar)

Temperature max 180 C

Speed to 1800 rpm

Lubrication oil or grease

51-80

51-100

61-150

52-150

61-200

240

160

100

120

Head H (m)

40 60 80 100 200 300 400

Capacity Q (l/s)

200

Main Dimensions

LSP51-80

LSP51-100

LSP52-150

LSP61-150

LSP61-200

Type DN1

DN2

Y W D X P1 P2 SPmin

HD* L* B* L1* Weightkg

200

200

250

250

250

80

100

150

150

200

450

450

560

500

500

790

790

790

900

900

400

400

450

400

400

500

500

630

500

560

320

340

385

350

350

370

380

440

410

410

300

300

300

300

300

770

770

770

770

770

3120

3120

3230

3280

3280

2850

2850

2850

2850

2850

1160

1160

1160

1160

1160

1280

1290

1290

1475

1490

Discharge opening (mm)Casing cover number

Bearing unit size

Pump series

All dimensions in mm.* Dimensions for the biggest motor normally used.Weight without coupling and motor.

NOTE! Dimensions not to be used for construction.

P1 P2

DN2

B

HD

D

X

DN1

Y W SP

L

L1


6/7

Materials

Volute casing

Casing cover

Diffuser

Impeller

Shaft

Wear ring

Shaft sleeve

Distance sleeve

Name of part Stainless steel design

Duplex Stainless Steel








ASTM A 890 Grade 3A*




SS2324**


(Hard coated HBN720)

SS2324**


(Hard coated HBN720)

Chemical composition (%)C

maxCr Ni Mo N

* 0.06 24-26 4-6 1.75-2.50 0.15-0.25

** 0.10 23-27 4.5-7 1.30-1.80

(comparable to AISI 329)

Other materials can be delivered

on request.


7/7

E00522 en 4.2005, Copyright Sulzer Pumps Finland Oy

This brochure is a general presentation. It does not provide any warranty or guarantee of any kind. Please, contact us for a description of the warranties and guarantees offered with our prod-

ucts. Directions for use and safety will be given separately. All information herein is subject to change without notice.

Check our worldwide offices atwww.sulzerpumps.com

LSP LowSpeedHighPressurePumps E00522

Documents

Transcript of LSP LowSpeedHighPressurePumps E00522